Available now
OpenAI
gpt-5.4-search
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...
TextReasoningToolsFilesVision1.1MCacheWebSearch
Input$1.80/ 1M
Output$10.80/ 1M
Endpointsopenai, openai-response, openai-response-compact, anthropic
Capabilities
ReasoningToolsParallel toolsVisionFilesCacheStructuredWeb searchService tierStreamingSystem msg
Modalities
Input
textimagefile
Output
text
Quick stats
Context window1.1M
Max output128K
Modechat
TokenizerGPT
ModeratedYes
Reasoning levels
noneminimalmax
Performance
Loading performance data...
Supported parameters
| Parameter | Always | Default |
|---|---|---|
| frequency_penalty | - | (do not send) |
| include_reasoning | - | |
| max_completion_tokens | - | - |
| max_tokens | - | - |
| presence_penalty | - | (do not send) |
| reasoning | - | |
| repetition_penalty | - | (do not send) |
| response_format | - | |
| seed | - | |
| structured_outputs | - | |
| temperature | - | (do not send) |
| tool_choice | - | |
| tools | - | |
| top_k | - | (do not send) |
| top_p | - | (do not send) |
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Pricing
| Input price | $1.80 · 1M tokens |
| Output price | $10.80 · 1M tokens |
| Compatible endpoints | openai, openai-response, openai-response-compact, anthropic |
| Vendor | OpenAI |
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Call gpt-5.4-search from your code
Point any OpenAI-compatible SDK at UnoRouter and request the model by name. Replace YOUR_API_KEY with a real key from your dashboard.
bash
curl https://api.unorouter.com/v1/chat/completions \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.4-search",
"messages": [{"role": "user", "content": "Hello!"}]
}'§ 03
Frequently asked questions
How much does gpt-5.4-search cost per 1M tokens?
Input is priced at $1.80 per 1M tokens, output at $10.80 per 1M tokens. Billing is per token, no rounding to batch sizes.
How do I access gpt-5.4-search via API?
Send requests to the UnoRouter /v1/chat/completions endpoint with model=gpt-5.4-search. Any OpenAI-compatible client library works. Authentication uses a standard Bearer token.
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